I've used a variety of connectors and fittings over the years and the best were the tri-clamps by far. There should not be any concern for parts that you use on the hot side that have a decent contact time with hot wort as that will sanitize them.
Threads are irrelevant on the hot side of our process, so throw out that argument. Using a calibrated digital thermocouple thermometer I took some time some years ago to measure all the possible places on the kettle valves, bulkheads, and attached hardware. In each case the boil temps quickly brought the hardware above required sanitation temps, all over 180F. Even if your threaded fittings were dirty, or your ball valves cruddy, there is nothing alive in there. Equipment varies so I cannot say this is true in all cases, but it's a good base for the discussion.
To prove this out the 3-piece ball valves that were used for years with never any infection/contamination were taken apart for their regular cleaning (each decade probably) and soaked in PBW. These were valves that get a good rinse after use and the valve actuated under some type of water flow while rinsing. See pic below.
Most of the time the plumbing is sanitized near the end of the boil by recirculating hot wort, so another way of ensuring that there is nothing alive. This goes for the plate chiller as well that is notorious for retaining some sort of crud each time no matter how good you think you clean it
There are a lot of connectors and such that are excellent for use in our hobby. I really liked the polysulfone plastic disconnects I used for years. Everything except the tri-clamps has solid disadvantages except for price. All that said, it doesn't matter if you have a few threaded parts on the hot side, what matters is what works for you. Just because someone has threads somewhere, it doesn't make the tri-clamps any less useful where they are used. It also doesn't mean that having threaded fittings in some places means you have to go nuts cleaning and sanitizing.
I use tri-clamps on everything now simply because they are the best overall, and anyone who thinks it is for "bling" factor is just incorrect. I'd say let your needs tell you what is the best simple solution for your system. I went through almost a decade with my current system trying a lot of things until the tri-clamps proved to be the next step in the evolution. No more leaks, crappy tiny o-rings, stuck releases, trapped gunk, no dedicated male/female side, universal hose ends, no lube, etc, etc. Only downside is the cost.